After racial discrimination was legally outlawed in 1964, southern public schools began to desegregate, and black students started to learn alongside white students. Now, decades later, meet the men and women who made history.

At the height of the Civil Rights Movement in 1964, the Freedom Summer project drew thousands of volunteers to register black voters and build a new political party. The goals of Freedom leaders were not only ambitious, but revolutionary.

Tonight, I'm joined by Prof. Daina Ramey Berry, Prof. Eric Walther, and Prof. Allyson Hobbs, three scholars of American history, to unpack the causes and consequences -- both immediate and enduring -- of the most deadly war in U.S. history, 150 years after its final battle.

The first museum in America dedicated entirely to slavery opened a few months ago in Wallace, Louisiana. Michelle Miller visits the museum and found a surprising history, not only about the plantation, but her own family.